What is the molecule that brings amino acids to the ribosomes to be assembled into proteins? ?

Pulmonary arteries carry highly oxygenated blood. true or false?

Which organisms udergo photosynthesis

Aplant with dark red flowers is crossed with a plant with white flowers. all of the offspring have dark red flowers with white spots. the alleles got flower color in this plant are both dominant both recessive codominant incompletely dominant